CVE-2026-30463: FuelCMS v1.5.2 SQLi Vulnerability

CVE-2026-30463 Overview

A SQL injection vulnerability has been identified in Daylight Studio FuelCMS version 1.5.2. The vulnerability exists within the /controllers/Login.php component, which fails to properly sanitize user-supplied input before incorporating it into SQL queries. This flaw allows attackers to manipulate database queries, potentially leading to unauthorized data access, data modification, or complete database compromise.

Critical Impact

SQL injection in the login controller may allow attackers to bypass authentication, extract sensitive data from the database, or execute arbitrary SQL commands against the backend database system.

Affected Products

• Daylight Studio FuelCMS v1.5.2

Discovery Timeline

• 2026-03-26 - CVE CVE-2026-30463 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-30463

Vulnerability Analysis

This SQL injection vulnerability affects the authentication mechanism of FuelCMS, specifically within the Login.php controller component. SQL injection vulnerabilities in authentication systems are particularly dangerous as they can allow attackers to completely bypass login mechanisms or extract credential information from the database.

The vulnerability appears to be related to the password reset functionality based on the associated Pentest Tools SQL Injection Analysis. When user input is passed to the login controller without proper sanitization or parameterized queries, malicious SQL statements can be injected and executed against the database.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries (prepared statements) in the Login.php controller. When user-controlled data is directly concatenated into SQL queries without proper escaping or the use of bound parameters, it creates an opportunity for SQL injection attacks.

Attack Vector

An attacker can exploit this vulnerability by submitting specially crafted input to the login functionality. The malicious payload would be processed by the Login.php controller and incorporated into a SQL query, allowing the attacker to modify the query's logic. This could enable authentication bypass, data exfiltration, or potentially database manipulation depending on the database permissions and application context.

The vulnerability is accessible through the web interface, requiring no prior authentication to exploit. Detailed technical information about the exploitation methodology can be found in the Pentest Tools SQL Injection Analysis document.

Detection Methods for CVE-2026-30463

Indicators of Compromise

• Unusual or malformed requests to /controllers/Login.php containing SQL syntax characters such as single quotes, double dashes, or UNION statements
• Database logs showing unexpected queries originating from the login functionality
• Failed login attempts with suspicious payloads in authentication fields
• Evidence of data exfiltration or unauthorized database access in server logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting login endpoints
• Monitor application logs for requests containing common SQL injection payloads such as ' OR '1'='1, UNION SELECT, or comment sequences
• Deploy intrusion detection systems with SQL injection signature rules focused on authentication endpoints
• Review database query logs for anomalous queries executed through the FuelCMS application

Monitoring Recommendations

• Enable detailed logging on the FuelCMS application and web server to capture full request parameters
• Configure database audit logging to track all queries executed against authentication tables
• Set up alerting for multiple failed login attempts or requests with abnormal payload sizes
• Implement real-time monitoring of network traffic to the FuelCMS server for suspicious patterns

How to Mitigate CVE-2026-30463

Immediate Actions Required

• Review and audit the Login.php controller code for SQL injection vulnerabilities
• Implement prepared statements with parameterized queries for all database interactions in the login functionality
• Deploy a Web Application Firewall (WAF) with SQL injection protection as an interim measure
• Consider restricting access to the FuelCMS administrative interface to trusted IP addresses only

Patch Information

At the time of publication, no official patch information has been released for this vulnerability. Administrators should monitor the FuelCMS Official Website and Daylight Official Website for security updates. Contact the vendor directly for guidance on remediation.

Workarounds

• Implement input validation at the application layer to reject requests containing SQL metacharacters
• Deploy a WAF configured to block SQL injection attempts targeting the login endpoint
• Restrict network access to the FuelCMS installation using firewall rules or VPN requirements
• Consider temporarily disabling the password reset functionality if it is the primary attack vector until a patch is available

# Example: Block access to vulnerable endpoint at web server level (Apache)
# Add to .htaccess or Apache configuration
<Location "/controllers/Login.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Location>